Sunday, February 11, 2018

electrostatics - Maximum limit of charging a capacitor


We say that we can charge a capacitor in proportion to the potential difference we apply across its plates and the maximum potential difference depends on the dielectric strength of the medium. Now suppose there is vacuum between the plates. Is there any limit on the maximum charge we can store in it? My concern here is for atomic properties of the material, as there is a fixed number of charges in a material.




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classical mechanics - Moment of a force about a given axis (Torque) - Scalar or vectorial?

I am studying Statics and saw that: The moment of a force about a given axis (or Torque) is defined by the equation: $M_X = (\vec r \times \...